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The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
Bidentate boron Lewis acids: synthesis by tin boron exchange reaction and host-guest complex formation
J Louis Beckmann1, Beate Neumann1, Hans-Georg Stammler1
1Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, University of Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
Abstract:
Four bidentate boron Lewis acids based on the 1,8-diethynylanthracene backbone have been synthesized by a tin-boron exchange reaction with various chloroboranes, yielding the products in good to excellent yields. Complexation experiments of the host compounds with pyridine, pyrimidine and TMEDA demonstrated striking differences in terms of formation and solubility of the supramolecular adducts. The host-guest complexes were investigated by multinuclear NMR spectroscopy and structurally characterized by X-ray diffraction experiments, illustrating the adaptation of the host system upon adduct formation with different neutral guest molecules.
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